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S000054498 [Member] Investment Objectives and Goals - Northern Trust STOXX US ESG Select ETF
Oct. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] Northern Trust STOXX® US ESG Select ETF (formerly, FlexShares® STOXX® US ESG Select Index Fund)
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The Fund seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the STOXX® USA ESG Select KPIs IndexSM (the “Underlying Index”).